i used ldap_initialize and tried initializing the connection using the CA certificate. i still am getting the same error.

the following is the code tat i compiled.. can anyone tell me where i am going wrong in the piece of code. I am able to connect to the ldap server using jxplorer on port 636

#include "ldap.h" main() { int returncode; char *host="155.35.5.215"; int port = 636; const char *user = "uid=administrator,dc=prasanth,dc=com"; const char *passwd = "notallowed";

LDAPMessage *result; char *base = "DC=prasanth,DC=com"; LDAP *handle;

// initialize the handle

if((returncode=ldap_initialize(&handle,"ldaps://155.35.5.215 "))!=LDAP_SUCCESS) { printf("LDAP initialization failed %d %s\n",returncode,ldap_err2string(returncode)); return; } else { printf("LDAP initialization successful\n"); }

//set the options for SSL certificate connection

int ldap_version = LDAP_VERSION3;

if((returncode=ldap_set_option(handle,LDAP_OPT_PROTOCOL_VERSION,&ldap_version))!=LDAP_SUCCESS) { printf("error while setting ldap version\n"); }

if((returncode=ldap_set_option(handle,LDAP_OPT_REFERRALS,LDAP_OPT_OFF))!=LDAP_SUCCESS) { printf("error disabling referrals\n"); }

int sslmode = LDAP_OPT_X_TLS_HARD ;

if((returncode=ldap_set_option(handle,LDAP_OPT_X_TLS,&sslmode))!=LDAP_SUCCESS) { printf("error setting tls option to hard\n"); }

int cert = LDAP_OPT_X_TLS_DEMAND;

if((returncode=ldap_set_option(0,LDAP_OPT_X_TLS_REQUIRE_CERT,&cert))!=LDAP_SUCCESS) { printf("error setting require cert option\n"); }

if((returncode=ldap_set_option(0,LDAP_OPT_X_TLS_CACERTFILE,"/root/certs/CAcert.pem"))!=LDAP_SUCCESS) { printf("error setting CA certificate\n"); }

if((returncode=ldap_start_tls_s(handle,0,0))!=LDAP_OPT_SUCCESS) { printf("TLS START FAILED\n"); } printf("%d %s\n",returncode,ldap_err2string(returncode));

On Wed, Jul 2, 2008 at 12:52 AM, Philip Guenther < guenther+ldapsoft@sendmail.com guenther%2Bldapsoft@sendmail.com> wrote:

On Tue, 1 Jul 2008, prasanth allada wrote:

...

i am trying to start an ldap connection over SSL

my code goes like this.

ldap_init(host,LDAPS_PORT); ldap_set_option() ldap_start_tls_s(handle,null,null);

when i call the ldap_start_tls_s() i get an error saying tat it cant contact the ldap server.

Right, because ldap_start_tls_s() performs the LDAP start TLS operation, but for ldaps the client is supposed to simply negotiate TLS/SSL upon connection, without sending an LDAP operation first.

The Right Thing is to stop using ldap_init() and instead use ldap_initialize(), passing it an URI of "ldaps://hostname".

(Note that it'll automatically use port 636 when the URI schema is "ldaps", just as it'll automatically use port 389 when the schema is "ldap".)

i have the CA certificate and the server certificate.

...

Can you tell me which certificate should i use in the code.

The client only needs the CA certificate. Set the LDAP_OPT_X_TLS_CACERTFILE option to the path to the PEM file, or set the LDAP_OPT_X_TLS_CACERTDIR option to a directory holding the PEM file with hashed paths. (Check out the docs for SSL_CTX_load_verify_locations() for the details of the hashing.)

Note that in versions before 2.4.0, those are *global* options: ldap_set_option() *must* be passed a NULL LDAP handle when setting them. As of 2.4.0 they're per-LDAP-handle only and must be set on each handle you create.

Philip Guenther